Petja Piiroinen
| Medal record | ||
|---|---|---|
| Representing Finland | ||
| FIS Snowboarding World Championships | ||
| 2011 La Molina | Big air | |
Petja Piiroinen (born 15 August 1991) is a snowboarder from Finland. He won the gold medal at the 2011 FIS Snowboarding World Championships in the big air event. He is the younger brother of fellow snowboarder Peetu Piiroinen.